[ICOM] Icom 756PRO Noise Blanker help

[John Geiger]

Hi Kurt,

Thanks for the idea. I turned off the noise reduction but it did the same
thing anyways.

73 John AF5CC

On Thu, Jun 23, 2016 at 1:50 AM, KD7JYK DM09 <kd7jyk at earthlink.net> wrote:

> :I recently purchased a used Icom 756PRO which is a very nice radio, but it
> : has something unusual about it.  When I turn on the NB, it makes a noise
> : like a howling wind or kind of a screetching sound.  That is about the
> only
> : way I can describe it.  It only does this on SSB, not on the other modes.
> : I hear it with my headphones on,and also thru the speaker.  It is
> : background noise dependent as it disappears if I turn off the preamp.
>
> I do not have that radio, BUT, several others I have do that if some sort
> of
> digital signal processing is also turned on, the heavier the processing,
> the
> more the unusual noise.  Some radios will hold a setting, for example if
> DSP
> is turned on in one mode, it might not be in others.  Is the 756PRO capable
> of that?  Check the screen indicators carefully if no other ideas come to
> mind.
>
> Kurt
>
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